HIPPOSIDERUS TEIDENS. 
99 
Subfamily HIPPOSIDERINJE. 
Each digit of the pes with two phalanges. The ilio-pectineal spine connected to 
the antero-inferior surface of the ilium, forming a preacetabular foramen. 
HIPPOSIDERUS. 
Hipposiderus, Gray, Zool. Misc. 1831, p. 37. 
The nose-leaf consists of three sections, an anterior, median, and posterior; the first is 
more or less horseshoe-shaped, flatly applied to the muzzle, with its anterior border not 
marked with a notch, the nostrils extruded near its centre, separated from each other 
by a more or less developed ridge, each nostril having its margin or a portion of its 
margin more or less lamellar; the median portion or sella is a transverse eminence which 
divides the anterior from the posterior section of the nose-leaf; the posterior section 
of the nose-leaf is usually more or less rounded above, never pointed, rarely tridentate, 
its upper border projecting somewhat over its anterior surface, which is divided 
generally into four cellular compartments ; two superimposed lamellar folds lie along 
the external border of the anterior section of the nose-leaf. The males of some of the 
species are provided with a frontal sac, rudimentary in females, which lies behind the 
nose-leaf, and is capable of being erected ; the opening is marked by stiff hairs, and a 
secretion is poured into the sac by a series of glands which unite with it. Glandular 
(eminences occur above the eyes and at the sides of the posterior section of the 
nose-leaf. 
11 2 13 
Dentition : i. 2 , c. j, pm. ^ or 2 j m. g = 30 or 28. 
Distribution .—Tropical and subtropical parts of Africa (but reaching 26° N. lat.), 
Asia, Malaysia, and Australasia. 
Hipposiderus tridens, E. Geoffr. (Plate XVII. fig. 1.) 
Rhinolophus tridens, E. Geoffr. St.-Hil. Ann. du Mus. xx. 1813, pp. 260, 265; Descr. de I’Egypte, 
Hist. Nat. ii. 1818, p. 130, pi. 2. nos. 1 & 1', et pi. 4. nos. 2 & 2"; Desm. Mammal. 1820-22, 
p. 126; Fischer, Syn. Mamm. 1829, p. 136; Griffith, Cuvier’s An. King. 1827, v. p. 77; 
Desmarest, Nouv. Diet. 1819, xxix. p. 252; Temm. Monogr. Mamm. 1835-41, p. 19, pi. 27. 
fig. 19; Wagner, Schreber, Saugeth. Suppl. i. 1840, p. 423; Ruppell, Mus. Senck. iii. 
1815, p. 155. 
Hipposiderus tridens, Gray, Mag. Zool. & Bot. ii. 1838, p. 493 ; Blanford, Faun. Brit. Ind., Mamm. 
